Patents by Inventor Karl Riedl

Karl Riedl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Recirculatory apparatus for spraying mould parting agents and other substances
    Patent number: 3981447
    Abstract: Apparatus for spraying mould parting agents and other substances having a conduit for circulating the substance, and spray nozzle equipment having a first bore connected to the conduit for a circulation of the substance therethrough. A second bore in the equipment intersects the first bore at an angle and extends to a spraying device. A nozzle pin in the second bore has a third bore for supplying a pressurized medium to the spraying device and is adjustable for a regulation of the supply of circulated substance to the spraying device. Additionally or alternatively, part of a conduit for circulating a sprayable substance is connected to a pump submerged in a supply of that substance and is actuated for actuating the submerged pump.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: September 21, 1976
    Assignee: Siemens-Albis Aktiengesellschaft
    Inventors: Bruno Bachofen, Karl Riedl